Sorry Steve, I don't know the answer. I was at the 75th Anniversary of Palmerston North Speedway in 2006, a celebration of the years 1930 - 2005. There is a reproduction of the souvenir programme cover for the 1990/91 New Zealand Super Modified Championship included and it features a photograph of Paul Dewar the then #2 in New Zealand. Reading a little further it says that he won the championship there